As someone just mentioned, theres already a method of doing this, the keyword nodelet. I actually started to categorize nodes using it, but its a lot for one person to do. Also it has a problem or two: The nodelet allows you to type in any keywords you like, and since different people will have different keyword ideas for the same posts, either everyone has to tag every post, or we need to make a list to pick from. I would prefer the second, since the use is to be able to look at nodes you dont know about, with certain keywords.

Here's my suggestion: Suggest a list of tags we can start out with, don't wait for someone else to do it.. Here are some of my ideas: